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Grade 2 Titanium vs. EN 1.4411 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.4411 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is EN 1.4411 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 250
370
Impact Strength: V-Notched Charpy, J 160
68
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
78
Tensile Strength: Ultimate (UTS), MPa 420
870
Tensile Strength: Yield (Proof), MPa 360
600

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
880
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 9.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
13
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
3.0
Embodied Energy, MJ/kg 510
41
Embodied Water, L/kg 110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 26
31
Strength to Weight: Bending, points 28
26
Thermal Diffusivity, mm2/s 8.9
4.6
Thermal Shock Resistance, points 32
28

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 0
15 to 17
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
73.1 to 79.5
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0